The UPS of my computer doesn't working properly i.e when ever the main supply is cut off or any fluctuation in the main supply a warning tone is alerting in my UPS but all of sudden my PC switches off ..... it has been working properlyf rom past two years.... but this last three days this problem start in it.... I think the backup battery might have loses its capacity... Pls suggest ur troubleshooting ideas for this problem
thanking you
thanking you